父(ちち) chichiが ga病(びょう)気(き)に()な()っ()た() byoukininattaので node、私(わたし)た()ち() watashitachiは wa医(い)者(しゃ) ishaを o呼(よ)び()に()や()っ()た() yobiniyatta。 When my father got sick, we sent for a doctor. Literal Father [subject-が] sick became [because-ので], we [topic-は] doctor [object-を] call [purpose-に] sent. 呼びにやる = 'to send (someone) to call' — やる here means 'to send (a person on an errand).' The purpose に marks why the person was sent. familyhealthpurpose に (verb-stem + に + motion verb)
父(ちち) chichiが ga病(びょう)気(き)に()な()っ()た() byoukininattaので node、私(わたし)た()ち() watashitachiは wa医(い)者(しゃ) ishaを o呼(よ)び()に()や()っ()た() yobiniyatta。 When my father got sick, we sent for a doctor. Literal Father [subject-が] sick became [because-ので], we [topic-は] doctor [object-を] call [purpose-に] sent. 呼びにやる = 'to send (someone) to call' — やる here means 'to send (a person on an errand).' The purpose に marks why the person was sent. familyhealthpurpose に (verb-stem + に + motion verb)